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FU24

SKU: 3877 Category:

Description

The FU24 is an all-in-one pH and ORP sensor made with a chemical resistant PPS 40GF body for harsh pH applications. It is particularly useful in applications with fluctuating pressure and/or temperature. These processes shorten sensor life because the process fluids move in and out of the sensor under influence of frequent pressure and/or temperature fluctuations. This results in fast desalting and dilution of the reference electrolyte which in turn changes the reference voltage causing a drifting pH measurement.

Measuring Elements

  • pH glass electrode
  • Silver chloride reference
  • Solid platinum electrode
  • Pt1000 temperature sensor.

Wetted Parts

Sensor body : PPS 40GF (Ryton™ with glass filling)

Earthing pin : Solid Platinum

Measuring sensor : G-glass

LE glass tube : AR-glass

O-ring : Viton

Reference junction : Porous PTFE

Bellow system : Viton

Functional Specifications (at 25^C)

Isothermal point : pH 7

Reference system : Ag/AgCl with saturated KCI

Glass impedance

– Dome shape : 100 MΩ nominal

– Flat Surface : 500 MΩ nominal

Junction resistance : 1.0 to 15 kΩ

Liquid outlet : non-flow double junction

Temperature element : Pt1000 to IEC 751

Asymmetry potential : 8 ± 15 mV

Slope : > 96 % (of theoretical value)

Note: The temperature sensor included in the FU24 is designed for cell compensation and for indication. It is NOT designed for process temperature control.

Dynamic Specifications

Response time pH : t90 < 15 sec. (for 7 to 4 pH step)

Response time temperature

– Dome shape : t90 < 1 min. (for 10 °C step)

– Flat surface : t90 < 4 min. (for 10 °C step)

Stabilization time pH : < 2 min. (for 0.02 pH unit during 10 sec.)

Operating Range

pH : 0 to 14

ORP : -1500 to 1500 mV

rH : 0 to 100

Temperature

– Dome shape : -10 to 105 ºC (14 to 221 ºF)

– Flat Surface : +15 to 105 ºC (59 to 221 ºF)

Learn about other pH Sensors available at BBP.

Additional information

Industry

Chemical, Engineering, Food & Beverage, Oil & Gas, Pharmaceutical, Power Generation, Pulp & Paper, Refining, Water & Wastewater

Manufacturer

Yokogawa